1543day.year

The first Finnish-language book, the Abckiria by Mikael Agricola, is published in Stockholm.

In 1543, Mikael Agricola's Abckiria becomes the first book printed in Finnish, laying the foundation for the Finnish written language.
Mikael Agricola, a Finnish clergyman and scholar, published the Abckiria primer in Stockholm on September 17, 1543. Commissioned to aid literacy and religious instruction, it introduced Finnish grammar and vocabulary in written form. The work marked a milestone for Finnish culture, transforming an oral vernacular into a literary language. Agricola's efforts influenced subsequent translations of religious texts and fostered national identity. The Abckiria remains celebrated as the cornerstone of Finnish literature and linguistic development.
1543 Finnish-language Abckiria Mikael Agricola Stockholm
2013day.year

Grand Theft Auto V earns more than half a billion dollars on its first day of release.

Grand Theft Auto V shattered entertainment records by earning over $500 million on its first day of release on September 17, 2013.
Rockstar Games launched GTA V to unprecedented commercial success, generating half a billion dollars in sales within 24 hours. The game’s launch outpaced major Hollywood blockbusters and best-selling albums, underscoring the gaming industry's financial power. Robust marketing, expansive open-world gameplay, and strong franchise popularity fueled consumer demand. Retailers reported sold-out stock and pre-order backlogs around the globe. The record-breaking debut further legitimized video games as a leading form of entertainment and economic force. The achievement signaled a shift in media consumption patterns and investor interest in the gaming sector.
2013 Grand Theft Auto V